1 /* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */
3 * Copyright 2010 Andrea Canciani
5 * Permission is hereby granted, free of charge, to any person
6 * obtaining a copy of this software and associated documentation
7 * files (the "Software"), to deal in the Software without
8 * restriction, including without limitation the rights to use, copy,
9 * modify, merge, publish, distribute, sublicense, and/or sell copies
10 * of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be
14 * included in all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
20 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
21 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
25 * Author: Andrea Canciani <ranma42@gmail.com>
28 #include "cairo-test.h"
35 static cairo_test_status_t
36 draw (cairo_t *cr, int width, int height)
38 cairo_pattern_t *pattern;
41 cairo_extend_t extend[NUM_EXTEND] = {
48 cairo_test_paint_checkered (cr);
50 pattern = cairo_pattern_create_linear (WIDTH/2, HEIGHT/2, WIDTH/2, HEIGHT/2);
52 cairo_pattern_add_color_stop_rgba (pattern, 0, 1, 0, 0, 1);
53 cairo_pattern_add_color_stop_rgba (pattern, sqrt (1.0 / 2.0), 0, 1, 0, 0);
54 cairo_pattern_add_color_stop_rgba (pattern, 1, 0, 0, 1, 0.5);
56 cairo_translate (cr, PAD, PAD);
58 for (j = 0; j < NUM_EXTEND; j++) {
59 cairo_reset_clip (cr);
60 cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT);
63 cairo_pattern_set_extend (pattern, extend[j]);
65 cairo_set_source (cr, pattern);
68 cairo_translate (cr, WIDTH+PAD, 0);
71 cairo_pattern_destroy (pattern);
73 return CAIRO_TEST_SUCCESS;
76 CAIRO_TEST (degenerate_linear_gradient,
77 "Tests degenerate linear gradients",
78 "linear, pattern, extend", /* keywords */
79 NULL, /* requirements */
80 (WIDTH+PAD) * NUM_EXTEND + PAD, 1*(HEIGHT + PAD) + PAD,